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Finding the Fourth Proportional to 577.93, 867.30 and 231.34

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Solution

The fourth proportional to 577.93, 867.30 and 231.34 is: 347.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.93 : 867.30 = 231.34 : x
  2. Step 2: Convert to fraction form
    577.93/867.30 = 231.34/x
  3. Step 3: Cross multiply
    577.93x = 867.30 × 231.34
  4. Step 4: Simplify right side
    577.93x = 200,641.18
  5. Step 5: Solve for x
    x = 200,641.18/577.93
  6. Step 6: Final answer
    x = 347.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.